Richrd:
According to the Brown, Day, Sewall, Sipe Family Tree on ancestry.com, Gertrude Sophia Gulbrandson first married Leone Sewall and on June 5, 1921 married William Francis Darrow b. 1880 Pennsylvania possibly in Cleveland County, Oklahoma. The tree does not say when or where he died. His WWI Draft Reg. Card says he ahd lost both legs.
Gertrude is found in the St. Louis, Hennipin, MN census as a widow.
Don